disk usage? Vista Enterprise

Terrier_Jimlad · 17 Dec 2008 at 19:26

Can anyone explain this for me? I have a 160GB VelociRaptor, and when you right click on my C:\ and goto properties it says 66.1GB used space ... however, when you run TreeSize (a free file size app) it shows as only 43GB used, which is confirmed when you right click each folder individually

Somewhere, 23GB is being used ... any ideas?

LiE · 17 Dec 2008 at 19:28

Have you had a look at the disk partition?

helmutcheese · 17 Dec 2008 at 19:29

Space set aside for Page File/Bin/Sys Restore. ?

Terrier_Jimlad · 17 Dec 2008 at 19:29

what's to look at? It's a single 149GB NTFS partition

SystemRestore is disabled ... I wouldn't have thought page file and a few other bits would be 23GB worth? seems very excessive!

helmutcheese · 17 Dec 2008 at 20:30

Page File is normally 1.5x your RAM, in my case that's 12GB.

Bin is a % of your HDD size (was 10%or 15% in XP AFAIR).

I had a Low Space Warning on my HDD last night, it was the massive movies Fraps makes of my games.

paradigm · 17 Dec 2008 at 20:46

Shadow copies?

Fanatic · 17 Dec 2008 at 21:14

System volume information uses a lot of space.

Almost 15GB for me according to Defraggler.

Nanobot · 18 Dec 2008 at 15:36

Run vssadmin List ShadowStorage in a dos window, it will show you how much space is being used by System Volume Info/System Restore...

Terrier_Jimlad · 18 Dec 2008 at 16:42

nanobot, seems your command has confirmed where my 23GB has gone:

Code:

C:\Windows\system32>vssadmin list shadowstorage
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2005 Microsoft Corp.

Shadow Copy Storage association
   For volume: (C:)\\?\Volume{f4d80f78-7f47-11dd-a731-806e6f6e6963}\
   Shadow Copy Storage volume: (C:)\\?\Volume{f4d80f78-7f47-11dd-a731-806e6f6e69
63}\
   Used Shadow Copy Storage space: 21.311 GB
   Allocated Shadow Copy Storage space: 22.064 GB
   Maximum Shadow Copy Storage space: 22.351 GB


C:\Windows\system32>

What is it actually shadow copying? Is this for SystemRestore purposes?

Nanobot · 18 Dec 2008 at 19:58

Its for System Restore points, usually 15% of your disk size. You can reduce it if you really need the space.

paradigm · 18 Dec 2008 at 20:23

Shadow copies aren't just for system restore, hence why I said Shadow Copies about half way up the thread.

Shadow copies allow you to view previous versions of files and folders. Right-click a folder now (in vista) and click on the "previous versions" tab...